All versions before 1.6.1 crash after loading.
This never occurred before the launcher 2,0.729.

To the reason of crash is the lack of adaptation with versions launched before the launch to support several versions.

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OperationalSystem = Windows 10 Pro;
Processor = Intel(R) Core(TM) i3-3240 CPU @ 3.40GHz;
InstalledRAM = 4,00GB;
SystemType = 64bits;